Film magazine



N. BOUVENG Re. 20,595 FILM MAGAZINE Dec. 21; 1937.

Original Filed March 28, 1951 2 Sheets-Sheet 1 BY mar 5174;. OR ww N.BOUVENG Re. 20,595

FILM MAGAZ INE Original Filed March 28, 1931 2 ShetsSheet 2 600M909-INVENTOR.

BY WXW- ATT RNEY.

- ratus and more possible for the operator to named Dec. 21, 1937 v jUNITED STATES HL MAGAZINE Nils Bouveng, Elgo,

assignments, to Jersey City, N. 1.,

Sweden, Eastman a corporation of New Jersey assignor, by mesne KodakCompany,

Original No. 1,984,111, dated December 11, 1934, Serial No. 526,027,March 28, 1931. Application for T 122,415

9 Claims.

to motion picture appaparticularly to a reversible film magazine formotion picture cameras.

In making two series of pictures width of film, the film is' passedthrough the camera exposing one-half of its width and then Thisinvention relates It is an object of-this invention to provide a filmspooling systemsuch that it will be imoperatively place the spoolingsystem in the camera in other than the correct position.

Another object of this invention is to provide a film magazine havingtwo spools or film cores adapted to carry the film which is loaded bythe supplierand not opened until in the hands of the Processor.

ins's in which:

Fig. 1 is a side view of an open camera adapted to receive the magazineof this invention;

Fig. 2 is a side view of a magazine embodying this invention with onewall removed;

' mg. 3 is a rear elevation in section of the magazine illustrated inFig. 2 with the film removed;

Fig. 4 is a side view of a modification of the magazine of thisinvention; and

Fig. 5 is a front elevation of the magazine shown in Fig. 4. l

In Fig. 1 is shown a camera/of a well known type and only such parts areshown as are deemed necessary to a complete understanding of thisinvention.

'As illustrated, the camera comprising a cas-' ing ll, one side of whichis removable and is not the partition .l|. line, the film is adaptedtopass .over a sprocket l2, pass between curved gate members l3 and I4through which it is drawn by, a suitable pulldown claw |5 and again overthe sprocket [2,

on a single reissue January 26, 1937, Serial No.

The film is held against the sprocket l2 by the rollers I6 carried onthe sliding supports IT.

Extending through the partition H is a shaft i8 adapted to drive thetake-up core as hereinafter described. The sprocket l2, the pull-downclaw l5 and the shaft l8 are adapted to be driven simultaneously bysuitable mechanism not shown. Suitable .means for positioning a.magazine in the camera may be provided such as depressing a portion IQof the partition I! to of the magazine, al-

though it is to be understood that any other magazine positioning meansmay be provided.

The magazine illustrated in Figs. 2 and 3 comprises a casing 20 providedwith a. wall 2| which may be removed for loading and unloading purposes.Suitably mounted in the magazine are two film cores 22 and 23 adapted tohold the film. These cores may be provided with suitable flanges forholding the film in proper position, but it is preferred to formindentations 24 in the casing 20 and cover 2| to accomplish this result.The core 22 is mounted for free rotation in the magazine and is providedwith a slot 25 or other suitable drivable means available through thecasing 20 to be connected with the shaft id for driving the core 22. Thecore 23 is likewise mounted for free rotation and is a similar slot 26which is available through the cover 2| for connection with the shaftiii of the camera. One edge of the magazine is with suitable filmopenings 21 and 28 rendered light tight by means of a black velvetlining or any other suitable means well known in this art. In loadingthemagazine' the cover 2| is removed as in Fig. 2 and a film 29 issecured to and wound around the core 22. 'I'heloose end 01' the film 29is then opening 21 and into the opening 28, and frictionally secured tothe core 23 by insertion in the s1ot30 as is well replaced and need notbe removed until it is desired to remove the film for processing. Whenit is desired to insert the magazine in the camera, the portion of thefilm appearing outside the magazine between the openings 21 and 28 ispulled out from the core 22 to form a'loop of sufiicient size to threadover the sprocket i2 and through the gate members I3 and II. Themagazine is now placed in the camera so that the core 23 becomes theindicated. The film throughthe camera provided with threaded out throughthe take-up core, that v comp width through a half-width gate orotherwise, as is well known. It is now desirable to expose the remaininghalf width of the film and to ach this the film is unthreaded and themagazine is reversed, that is, the magazine is removed and replaced inthe camera so that the slot connects with the shaft l8 and the core 22becomes the take-up core. The film is again threaded through thesprocket l2 and the gate members." and I4 and upon operation of thecamera the remaining exposed. The end oi the film secured to the core 23is of normal widthand permits the entire length oi film to pass throughthe camera and be wound upon the core 22 from which it can not again bepassed through .the camera. without first removing the cover isinstructed not to do.

It will be seen from the above that I have provided a film magazinewhich must, from necessity, be so placed in the camera that the secondpassage of film through the camera cannot expose the same half width ofthe film that was exposed during its first passage-through the camera.For convenience, a suitable legend may be placed on the/magazine toindicate to the oper-.

ator the position in which the magazine should first be inserted in thecamera.

One modification of this invention is illustrated in Fig. 4 ascomprising a magazine similar to the one above described but in whichthe feed-' the gate members 33 and in the magazine structure.

ing sprocket 32 and 34 are incorporated The camera structure maybereadily alteredto accommodate this magazine by positioning the pull-downmechanism so that the claw will properly cooperate with the film in thegate members 33 and 3l,-'which members may be straight as shown. or maybe curved if desired. In addition, the camera should have a drive shalt,not shown, but similar to shait i8 suitably' located to connect with thedrivable means or slots 35 provided at each end-of the sprocket 32. Itis to be noted that the cores 22 and 23 are symmetrically disposedrelative to the sprocket 32 and the gate members 33 and 34 so that thesprocket 32 will be drivably connected to its shaft for both positionsof the magazine, that is, when the core 22 is in take-up position, aswell as when the core 23 is in take-up position.

Those skilled in the art will readily understandthat the size andlocation of the picture may be determined by the camera aperture in awell-known manner. For the purpose of this invention the camera aperturepreferably is one half the width of the film'between the perforations,and is of a height equal. to the eflective stroke of the pulldownmechanism. With the aperture and lens of the camera. properlypositioned, it isrreadily apparent-that only one half width of the filmone exposure.

In practice this modified magazine is loaded by the supplier and thecustomer receives it with the bulk oi thefilm on the core 22, the leadof will be exposed by any the film being threaded over the sprocket 32and between the gate members 33 and 3|. and secured to the core 23. Thecustomer places the magazine in the camera with the core 23 in takeupposition and exposes-one-hali width of the film. The magazine is nowremoved and placed in thecamera in reversed pomtion so that the core 22becomes the take-up coreand the film is again passed through the camerato expose the remaining half width of film. The came a half width of thefilm is- 2l, which the operator picture area.

some

is operated until all of the film is wound on the take-up core 22 and,therefore, cannot be passed through the camera again without removingthe cover 2i and retreading the film, which operation the customer hasbeen warned not to do. The magazine is now returned to the processor whoremoves the film and reloads the magazine with raw film whereupon it isready to be sold to another customer.

, In Fig. 5 I have illustrated one arrangement of the exposure window 42and the pull-down slots 43 and 44 for the magazine shown in Fig. 4. Itwill be noted that the slots 3 and H are symmetrically disposed aboutthe window 42 so as to occupy the same position in the camera for bothpositions of the magazine. Gate member 33 is provided with an exposurewindow 33'. The slots 43 and 44 are of sumcient length to uncover atleasttwo perforations of the film. It will be obvious that it a two clawpull-down is to be used, two slots may be provided in the casing.

A mask for determining the size of the picture area should be mounted onthe camera behind only two pictures .are to be taken on the normal-While two embodiments of this invention have been described in detail tocomply with the requirements of the statutes, it is to be understoodthat it is not limited to the exact arrangements described inasmuch as,in -view of the disclosure.

obvious modifications will readily-suggest them-' selves, to thosefamiliar with this art without departing from the spirit of thisinvention or the scope of the claims herein.

What I claim as new and Letters Patent of the United States, is:

1. A reversible motion picture film magazine comprising a light-tightcasing with opposite par.- allel fiat walls, two parallel film coresrotatably mounted within said casing, one wall having an opening axiallyof one core and the other having an opening axially of the other core;each core having a clutch member within the casing op-' posite andengageable through the respective opening and a sprocket also mountedentirely within the casing parallel to the cores and having clutchelements at each end and openings in both side walls axially of thesprocket, whereby the magazine is free from protruding parts and may beutilized in inverted positions,

2. 'A magazine for motion picture apparatus comprising a casing having"a wall with an exposure window and having opposite parallel walls,

each of the parallel walls having a single opendesire to be secure by 5ing, two parallel film cores rotatably mounted within said casing each01 said cores v one end opposite the corresponding opening, whereby theymay be alternately engaged by a driving element to wind film from eitherto the other, said first named wall having two slots diametricallysymmetrical with respect to the center of the exposure window, wherebythe magazine may be completely inverted between two positions and becapable in each position of cooperating with the same film engaging clawQperating through one slot and the same driving "element operatingthrough one opening.

3. In a magazine for motion picture apparatus. the combination with apair of film cores, of

and axially of said openings,

having a drivable means in window in the magazine, slots insymmetrically arranged about magazine walls enclosing said cores, anexposure said magazine adapted to receive film positioning means andsaid window, a sprocket for moving a film towards and away from saidwindow, drivable means for said sprocket adapted to cooperate withdriving means of the motionpicture apparatus through either wall of saidmagazine and drivable means for each core adapted to cooperatealternately with a single driving means of said apparatus.

4. A reversible magazine for motion picture apparatus comprising sidewallsand an edge wail, cores mounted between said walls, one core havinga driving means at one end and the other core having a driving means atthe otherend, a filmstrip with perforated edges wound on and attached tothe cores, the edge wall having an exposure gate and slots symmetricallylocated with respect to the gate, one being in line with one edge of thegate and on one side thereof and the other being in line with the otheredge of the gate and on the other side thereof, and means to guide thefilm from one core to'the other, past said gate and slots with, theperforations of one edge behind one slot and the perforations of theother edge behind the other slot.

5. A reversible motion picture film magazine -comprising a casing andfilm supporting means therein, and means to guide film in a definitepath in either direction along said path, one wall of the casing havingan exposure gate along the path of the film and having also two slots,one on one side of the gate opposite the path of one edge of the filmand the other on the other side of the gate symmetrically opposite thefirst with respect to the gate and opposite the path of the other edgeof the film.

6. A reversible magazine for motion picture apparatus comprisinga'relatively thin casing having opposed side walls and a narrowperipheral wall connecting the edges of the side walls, cores rotatablymounted between the side walls, a strip of film wound upon and connectedat its ends to the two cores and having uniformly spaced perforaticnsalong its edges, said peripheral wall havin'g an exposure gate therein,means for guiding and supporting a portion of the film at said gate,

two slots of greater length than the distance between consecutiveapertures in the film, one slot being on one side of the gate andin-registry with one edge of the film and the other slot beingsymmetrically opposite to the first with respect to the gate and inregistry with the other edge of the film 7. A reversible magazine foruse in a motion picture camera and comprising a light-tight casinghaving side walls and a peripheral wall connecting the edges of the sidewalls each side wall ing reversed positions film strip provided having asingle opening therein, a pair of spaced cores rotatably mounted betweenthe walls axially of the respective openings and entirely within thecasing, the end of each core opposite the respective opening having aclutch element thereon adapted to be engaged through the opening, theperipheral wall having an exposure gate therein and slots symmetricallypositioned on each side or said exposure gate and in line with oppositeedges of said gate, whereby the magazine may be used in either of twoinverted positions in a camera having a clutch element adapted to engagethe cores alternatively and having a pull-down claw adapted to operatein the slots alternatively to advance 'filmthrough the magazine.

8. A reversible magazine for motion picture apparatus comprising sidewalls and an edge wall, coresmounted between said side walls, one corehaving a driving means at one end and the other said film strip and theother slot being in line,

with the perforations along the other edge of said film strip, and saidedge wall with respect to said slots being symmetrically apertured foralternative co-operation with an exposure opening in said motion pictureapparatus respectively durof said magazine therein whereby oppositelyextending longitudinal series oi images on the film strip may bealternately exposed.

9. A reversible magazine for motion picture apparatus comprising sidewalls and an edge wall, cores mounted between said side walls, one core"having a driving means at one end and the other core having a drivingmeans at the other end, a with perforated edges, wound on said cores andextending therebetween, a gate plate along the inside of said edge wall,and means for guiding the intermediate portion of said film strip alongsaid gate plate, said edge wall and said gate plate each beingprovidedwith a pair of slots, one slot being in line with the perforations alongone edge oi! said film strip and the other slot being in line with theperforations along the other edge of said film strip, and said edge walland gate plate with respect to said slots each being symmetricallyapertured for alternative cooperation with an exposure opening in saidmotion picture apparatus respectively during reversed positions .of saidmagazine therein whereby oppositely extending longitudinal series ofimages on NILS BOU'VENG.

